Hi there! New to this, just got 4 chicks a week ago through the mail. All doing great! Love them so much! A local feed store has some chicks now and I was thinking of adding 1 or 2. Would I need to keep the new ones separate from the existing (quarantine)? If so how long? Or can I just put new chicks in with the existing? Or should I just wait until these are grown and get more chicks another year? The existing are now just a few days over a week old. I want to do whatever is best for the chicks I currently have. I am realizing now that I should have originally ordered a few more! Any advice would be greatly appreciated! Thanks so much!